cryptocomlandgame|Xi sends congratulatory letter on opening of Shenzhen-Zhongshan cross-sea passage super 2024-06-30 13:04:21 Nature 20 SHENZHENcryptocomlandgame, June 30 (Xinhua) -- Chinese President Xi Jinping on Sunday sent a congratulatory letter on the opening of a cross-sea passage between the cities of Shenzhen and Zhongshan in southern China's Guangdong Province.■